64088217 has 6 divisors (see below), whose sum is σ = 92571882. Its totient is φ = 42725472.

The previous prime is 64088203. The next prime is 64088239. The reversal of 64088217 is 71288046.

64088217 is a `hidden beast` number, since 640 + 8 + 8 + 2 + 1 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47734281 + 16353936 = 6909^2 + 4044^2 .

It is not a de Polignac number, because 64088217 - 2¹⁰ = 64087193 is a prime.

It is a super-4 number, since 4×64088217⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (64088257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3560448 + ... + 3560465.

It is an arithmetic number, because the mean of its divisors is an integer number (15428647).

Almost surely, 2^64088217 is an apocalyptic number.

It is an amenable number.

64088217 is a deficient number, since it is larger than the sum of its proper divisors (28483665).

64088217 is a wasteful number, since it uses less digits than its factorization.

64088217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120919 (or 7120916 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 64088217 is about 8005.5116638476. The cubic root of 64088217 is about 400.1837010386.

Subtracting from 64088217 its sum of digits (36), we obtain a triangular number (64088181 = T₁₁₃₂₁).

The spelling of 64088217 in words is "sixty-four million, eighty-eight thousand, two hundred seventeen".